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      06-11-2011, 06:24 AM   #104
Private First Class
emre's Avatar

Drives: E92 LCI 335i
Join Date: May 2010
Location: Istanbul

iTrader: (0)

Originally Posted by ian2002525 View Post
K&N just released the n55 135i and 335i air filter, $53.99
This drop in filter has been available for a while.

I installed it right after I had the Bmw PPK installed, so cannot comment on any gains but I guess no one really expects much gains, if any, from a drop in anyway.

Regarding the sound, under wot almost no change at all, contrary to what I expected.
Only a barely noticeable sound change with partial throttle around 2.000 - 4.000 rpms.

If anyone is thinking to buy it hoping for a better sound, I would recommend not to.

'11 E92 BSM 335i / Saddle Brown Dakota Leather / M Sport / 19" 225M / DCT / Navi Pro / BMW Individual High End Audio System / Cobb Stage 2+ / AR Design Catted DP / ETS FMIC & Charge Pipe / K&N Drop In / BMW Performance Suspension / BMW Performance Diffuser / M3 Lip Spoiler